Method of faceting diamonds with culet

FIELD: process engineering.

SUBSTANCE: invention is intended for use in production of jewelry. Proposed method comprises faceting round diamond to form a culet. Inner taper with solid angle of 98.5° is ground and polished in said culet.

EFFECT: complete reflection of light from cullet to create extra stone brilliance.

2 dwg

 

The invention relates to the processing of diamonds with caletti and may find application in the processing of rough diamonds.

Known manufacturing process of diamond, described in the patent WO 2009/144594 issued by the International Organization for Intellectual Property on 7 April 2009. It describes the process, which explores the diamond raw material with the cloud inclusions, and the diamond is cut so that the geometrical shape of the inclusions was aesthetic interest, associative interest, i.e. interest because of their symbolism or connections with religion, country or other social or cultural groups. Diamond is processed in the form of a round brilliant cut, the lack of which is the size of kalety, which for a clearer display of the geometric forms of involvement can be as high as 40% of the site, which in turn reduces the reflection.

The closest in characteristics to the proposed technology is a way to cut diamonds, described in the book Epifanov VI and other "Technology of processing of diamonds". M.: Vysshaya SHKOLA, 1987, s. This form of cutting is called "Princess". Diamonds Princess" have plates with alternating right grooves. Each record can be granina in any shape (square, rectangle, megapol is nick, heart-shaped). The top plate is polished in the form of tabular ground with a small number of faces, the bottom is cut by a series of V-shaped grooves at an angle of 41°. These grooves is provided by total internal reflection of light between the two faces of the adjacent grooves.

However, grinding Calley in the round diamond technology "Princess" V-groove allows to obtain total internal reflection only from the adjacent parallel grooves.

The basis of the invention is to develop a method of processing diamonds with dimensions that do not allow for the height of the stone to grind the bottom of the diamond with the dowel at an angle of more than 98,5°.

Cut the bottom of the diamond under the ideal angle is only possible with caletti. However caletta transmits the light passing area. Required caletta, the form of which would create internal reflection closest to the reflection of a thorn.

The technical result is ensured by the total reflection of light from caletti, creating the brilliance of the stone.

The technical result is ensured by the way-cut diamonds with caletti, including diamond cutting round shape with the formation of caletti, in contrast to known solutions in Colette visitvisit and polished inner cone with a solid angle of 98.5°.

Such technology is some solution allows rays of light, passing through the ground and reaching caletti not pass through it, and be reflected from the surface of the cone on the edge of the bottom of the diamond and go up, creating a complete reflection of light rays from caletti.

1 shows a diamond with an internal taper at Colette, side view with a partial section;

figure 2 is a bottom view of the diamond.

The method is as follows.

The diamond is placed in a special collet fixture and produce fillipovka in Colette cone with a solid angle equal to 98.5°. After fillipovcy cone polished. It is also possible laser processing of a cone.

The use of the present invention to cut diamonds with caletti will greatly improve the "game" of the crystal by means of total internal reflection without increasing the consumption of raw materials. It is possible to use stones with a height of less than 60% of the diameter.

Method-cut diamonds with caletti, including diamond cutting round shape faceted education caletti, characterized in that Colette visitvisit and polished inner cone with a solid angle of 98.5°.



 

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Piece of jewellery // 2433769

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3 cl, 2 tbl

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12 cl, 9 dwg

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